3 files changed, 1042 insertions, 0 deletions
diff --git a/2024/tcl/01.tcl b/2024/tcl/01.tcl
new file mode 100755
index 0000000..462a7a9
--- /dev/null
+++ b/2024/tcl/01.tcl
@@ -0,0 +1,33 @@
+#!/bin/env tclsh
+
+source lib.tcl
+setup 1
+
+puts {Part 1: Find the sum of distances between pairs of numbers with the same ordinal in each list.}
+
+while {[gets $input line] != -1} {
+  lassign [regexp -inline -all {\d+} $line] ln rn
+
+  lappend left_nums $ln
+  lappend right_nums $rn
+
+  dict incr right_num_counts $rn
+}
+
+close $input
+
+set left_nums [lsort -integer $left_nums]
+set right_nums [lsort -integer $right_nums]
+
+foreach ln $left_nums rn $right_nums {
+  incr total1 [expr {abs($ln - $rn)}]
+
+  if [dict exists $right_num_counts $ln] {
+    incr total2 [expr {$ln * [dict get $right_num_counts $ln]}]
+  }
+}
+
+puts "Sum of distances: $total1"
+puts ""
+puts {Part 2: Find the "Similarity Score" of the lists.}
+puts "Similarity Score: $total2"
diff --git a/2024/tcl/input.01.txt b/2024/tcl/input.01.txt
new file mode 100644
index 0000000..cf109b6
--- /dev/null
+++ b/2024/tcl/input.01.txt
@@ -0,0 +1,1000 @@
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diff --git a/2024/tcl/lib.tcl b/2024/tcl/lib.tcl
new file mode 100644
index 0000000..d816a25
--- /dev/null
+++ b/2024/tcl/lib.tcl
@@ -0,0 +1,9 @@
+proc setup {n} {
+  puts "Advent of Code 2024 day $n Solution"
+  puts "<https://adventofcode.com/2024/day/$n>"
+  puts ""
+
+  set n [string range 0$n end-1 end]
+  upvar input input
+  set input [open input.$n.txt]
+}